JPS5918242Y2 - High frequency heating device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a high-frequency heating device equipped with a cooking time display device for setting heating time, which has a rotating display drum displaying a cooking menu and cooking time on the outer periphery. The purpose of this invention is to improve the reliability of the operation of a changeover switch that operates in relation to the content, and to enable more displays to be displayed with a more compact configuration.

Conventionally, high-frequency heating apparatuses have often been provided with a cooking time display device for setting the heating time.

This is because the heating method of high-frequency heating equipment is fundamentally different from conventional gas or electric heaters, so it is difficult for general users to get a sense of cooking time, etc. The rotating type, in which the display is displayed around the outer periphery of the display, is very useful because it allows a large amount of display to be displayed in a small space, and is the most widely used.

Furthermore, when the rotating body is operated externally and rotated, the switching structure automatically provides an output corresponding to the displayed content in conjunction with this rotation, which will further improve the operability of the refrigerator frequency heating device. It is likely that more will be implemented.

However, conventional high-frequency heating devices equipped with this type of cooking time display device have complicated structures, are large in size, and have poor reliability.

The present invention has been devised in view of the above-mentioned drawbacks of the conventional art, and one embodiment of the present invention will be described below with reference to the accompanying drawings.

In Figures 1 and 2, 1 is the main body of the high-frequency heating device, 2
1 is a door that can be opened and closed to freely cover the front opening of a heating chamber (not shown) provided in the main body 1, 3 is an operation panel, and 4 is an operation panel 3
6 is an operation dial for rotating the rotating display drum 4, 7 is a long-time timer, 8 is a short-time timer, and 9 is a timer for starting heating. The cooking button 10 is a cooking lamp that indicates that heating is in progress.

Figures 3 and 4 show the specific structure of the cooking time display device, in which 11 is a hollow rotating body made of a transparent resin material such as polycarbonate, and 12 is a polyester body with cooking time, cooking menu, etc. printed on its surface. The rotating display drum 4 is constructed by wrapping a resin film cut from a film or the like around the outer periphery of the rotating body 11 and gluing a part of the film.

13 is a rotating body 11 along with an operation dial 6 which also serves as a side plate.
A cam 14 is formed on the outer circumferential surface of the side plate that covers the end opening of the cam 14, as shown in FIG.

Reference numeral 15 denotes a bearing that rotatably holds the rotating body 11 via the operation dial 6 together with a bearing 16 that supports the side plate 13, and is made of a thin plate spring such as stainless steel.
1's movement in the thrust direction is regulated.

A lamp 17 is placed inside the rotating body 11 to illuminate the display surface, and is attached to the bearing 16 via a socket 18 and a support fitting 19.

Reference numeral 20 and 21 designate an output changeover switch and an output display lamp (not shown) changeover switch operated by a cam 14 provided on the outer peripheral surface of the side plate 13, and are fixed to the bearing 16.

22 is a transparent plate that covers the display window 5, and 23 is an elastic thin plate made of resin fiber such as felt, which prevents dust from adhering to the surface of the resin film 12 and also allows the surface of the resin film 12 to be slightly bent. The bearing 1 is in elastic contact with the bearing 1 and is configured to remove dust attached to the surface of the resin film as the rotating body 11 rotates.
5.16 is screwed to the operation panel 3.

In this configuration, the operating cam 14 of the changeover switch 20.21 is provided on the side plate 13 supported by a non-spring bearing 16 located on the opposite side from the operation dial 6.
The operation of the changeover switches 20 and 21 is unaffected by unstable movements such as play between the bearing 15 and the operation dial 6 when the operation dial 6 is operated from the outside, or deflection due to the springiness of the bearing 15, as shown in FIG. Even if the rotating body 11 and the operation dial 6 are temporarily disengaged from each other as shown by the two-dot chain line, the changeover switch 2
It has almost no effect on 0.21.

Further, the changeover switch 20.21 is provided with a lever 24 made of a spring material such as stainless steel as an actuator, and the lever 24 is in contact with the cam 14.
is the radial bearing surface 13 a of the side plate 13 of the cam 14
Since the lever 24 is positioned so as to press from directly above the cam 14, the pressing force applied to the cam 14 by the lever 24 is applied to the rotating body 11 and the side plate 13.
This does not adversely affect the connection by the spring force of the bearing 16 at all.

Further, the lever 24 is sandwiched between the extension 16a of the bearing surface in the thrust direction of the bearing 16 and the standing wall 13b from the cam surface of the side plate 13, and uses this as a guide, so that it does not deviate from the cam surface.

As is clear from the above description, according to the present invention, the switching section for switching the output, etc. related to the display on the rotating display drum is located at the opposite end of the rotating display drum from the operating section provided at one end of the rotating display drum. Because of this provision, the switching section is not affected by any adverse effects from the outside when operating the operating section, improving reliability.

In particular, the rotating body is composed of a drum and a side plate that closes both ends of the drum, the side plate and the drum are supported by a pair of bearings, one of the bearings is composed of a spring body, and the spring force of the spring body is used to connect the drum and the side plate. The structure for assembling and holding is very advantageous for making the cooking time display device compact, but as in the present invention, it is necessary to operate the changeover switch from the operation dial side to the other bearing side on the spring body bearing. This was made possible by forming a cam.

In this way, the structure is extremely simple and compact, and has great practical value.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a high-frequency heating device showing an embodiment of the present invention, FIG. 2 is a front view of the main parts, FIG. 3 is a cross-sectional view of a cooking time display device used in the device, and FIG. 4 5 is an exploded front view of the same, and FIG. 6 is a side view showing the relationship between the cam and the changeover switch.

Claims (1)

[Scope of utility model registration request] A rotating display drum that displays a cooking menu and cooking time on the outer periphery and has a hollow rotating body and a removable side plate that covers an end opening of the hollow rotating body, and one end of the rotating display drum can be rotated from the outside. an operating section, and a switching section provided at the other end of the rotating display drum for switching an output, etc. related to the display on the rotating display drum, and the hollow rotating body is rotatably supported by a pair of bearings. The bearing on the operation dial side of the pair of bearings is constituted by a spring body that applies pressure in the axial direction of the hollow rotary body, and the hollow rotary body and the side plate are moved by the spring force of the bearing made of the spring body. A high-frequency heating device configured to assemble and hold.